diff -up nfs-utils-2.3.3/support/export/v4clients.c.orig nfs-utils-2.3.3/support/export/v4clients.c

--- nfs-utils-2.3.3/support/export/v4clients.c.orig	2022-09-26 11:36:22.803929066 -0400

+++ nfs-utils-2.3.3/support/export/v4clients.c	2022-09-26 11:38:38.221187835 -0400

@@ -8,6 +8,7 @@

 #include <unistd.h>

 #include <stdlib.h>

 #include <sys/inotify.h>

+#include <sys/stat.h>

 #include <errno.h>

 #include "export.h"

@@ -23,6 +24,12 @@ static int clients_fd = -1;

 void v4clients_init(void)

 {

+	struct stat sb;

+

+	if (!stat("/proc/fs/nfsd/clients", &sb) == 0 ||

+		!S_ISDIR(sb.st_mode))

+		return;

+

 	if (clients_fd >= 0)

 		return;

 	clients_fd = inotify_init1(IN_NONBLOCK);